It has a lot of space. But that space is a little hard to use. (Probably perfect for those lenses. I found the pack to be too deep for most of my stuff. Meaning I had to stack things.) The pack tends to put a lot of stress on your shoulders and lower back. Okay for a few hours but not a lot more than that.
Oh, and the seam around the zipper gave way after a year.
I replaced mine with a Kata that wouldn't have enough room for your lenses if you crushed them with a steam roller.